[1]李涌,吴家堡,吴正新,等.Er2O3-WO3-水性聚氨酯X射线屏蔽材料的制备及性能[J].深圳大学学报理工版,2020,37(3):293-297.[doi:10.3724/SP.J.1249.2020.03293]
 LI Yong,WU Jiabao,WU Zhengxin,et al.Preparation and properties of Er2O3-WO3-waterborne polyurethane based X-ray shielding material[J].Journal of Shenzhen University Science and Engineering,2020,37(3):293-297.[doi:10.3724/SP.J.1249.2020.03293]
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Er2O3-WO3-水性聚氨酯X射线屏蔽材料的制备及性能()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第37卷
期数:
2020年第3期
页码:
293-297
栏目:
材料科学
出版日期:
2020-05-20

文章信息/Info

Title:
Preparation and properties of Er2O3-WO3-waterborne polyurethane based X-ray shielding material
文章编号:
202003012
作者:
李涌吴家堡吴正新刘国卿
深圳大学物理与光电工程学院,广东深圳 518060
Author(s):
LI Yong WU Jiabao WU Zhengxin and LIU Guoqing
College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China
关键词:
金属材料辐射防护技术X射线屏蔽材料质量减弱系数水性聚氨酯氧化铒氧化钨
Keywords:
metal material radiation protection technology X-ray shielding material mass attenuation coefficient waterborne polyurethane Er2O3 WO3
分类号:
TG115
DOI:
10.3724/SP.J.1249.2020.03293
文献标志码:
A
摘要:
为制备性能优良的辐射防护材料,以水性聚氨酯为基底,以氧化铒(Er2O3)、氧化钨(WO3)为射线屏蔽剂,制得无铅、环保、高效的Er2O3-WO3-水性聚氨酯X射线屏蔽材料.用高纯锗探测器测试和分析了材料的屏蔽性能,用蒙特卡罗程序MCNP对光子在材料中的运输过程进行模拟,用扫描电镜对材料表面进行观察分析. 结果表明,该复合材料可有效屏蔽X射线,屏蔽剂在材料内部分布均匀.材料对59.5 keV(241Am)和81.0 keV(133Ba)射线的质量减弱系数分别为5.5 cm2/g和4.2 cm2/g,优于传统铅屏蔽材料的防护效果(5.1 cm2/g和2.4 cm2/g). 样品质量减弱系数的实验测量值与MCNP模拟计算结果相对误差在5%以内.
Abstract:
To prepare an excellent radiation protective material with excellent performance, a lead-free environment-friendly efficient X-ray shielding material is prepared by using waterborne polyurethane as the substrate while Er2O3 and WO3 as the radiation shielding agents. The shielding property of the material is tested and analyzed with a HPGe detector. MCNP software is used to simulate the transportation process of photons in the materials. The surface of the material is observed and analyzed by scanning electron microscope (SEM). The results show that the composite material could effectively shield X-rays, and the shielding agents within the material are dispersed evenly. The mass attenuation coefficients of the material at 59.5 keV (241Am) and 81.0 keV (133Ba) are 5.5 cm2/g and 4.2 cm2/g, respectively. The shielding ability is better than those of traditional Pb (5.1 cm2/g and 2.4 cm2/g, respectively). The relative errors between the measured values of mass attenuation coefficients and the simulated results of MCNP are within 5%.

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备注/Memo

备注/Memo:
Received:2019-07-05;Accepted:2019-12-22
Foundation:Natural Science Foundation of Guangdong Province (2016A030313037); Shenzhen Science and Technology Research and Development Fund (JCYJ20170818100556755)
Corresponding author:Professor LIU Guoqing. E-mail: liugq@szu.edu.cn
Citation:LI Yong, WU Jiabao, WU Zhengxin,et al. Preparation and properties of Er2O3-WO3-waterborne polyurethane based X-ray shielding material[J]. Journal of Shenzhen University Science and Engineering, 2020, 37(3): 293-297.(in Chinese)
基金项目:广东省自然科学基金资助项目(2016A030313037);深圳市科技研发资助项目(JCYJ20170818100556755)
作者简介:李涌(1996—),深圳大学硕士研究生,研究方向:粒子物理与原子核物理.E-mail: 1800211007@email.szu.edu.cn
引文:李涌,吴家堡,吴正新,等. Er2O3-WO3-水性聚氨酯X射线屏蔽材料的制备及性能[J]. 深圳大学学报理工版,2020,37(3):293-297.
更新日期/Last Update: 2020-05-30